import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
import qs from 'qs'

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent
    // config.data = qs.stringify(config.data)
    // config.data = config.data
    config.headers['Content-Type'] = 'application/json'
    // config.data=JSON.stringify(config.data);
    // config.headers.post.data = qs.stringify(config.data)

    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      // config.headers['Authorization'] = getToken()
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data

    // if the custom code is not 20000, it is judged as an error.
    if (res.code !== 200) {
      const errMsg = ''
      console.log('Array.isArray(res.msg)', Array.isArray(res.msg))
      if (Array.isArray(res.msg)) {
        Message({
          message: res.msg.join('；') || 'Error',
          type: 'error',
          duration: 5 * 1000
        })
      } else {
        Message({
          message: res.msg || 'Error',
          type: 'error',
          duration: 5 * 1000
        })
      }

      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      if (res.code === 401) {
        // to re-login
        MessageBox.alert('登录失效，请重新登录', {
          type: 'warning'
        }).then((res) => {
          location.reload()
        })
        // MessageBox.confirm('登录失效，请重新登录', '温馨提示', {
        //   confirmButtonText: '重新登录',
        //   cancelButtonText: '返回',
        //   type: 'warning'
        // }).then(() => {
        //   location.reload()
        //   // TODO：重新获取 token
        //   // store.dispatch('user/resetToken').then(() => {
        //   //   location.reload()
        //   // })
        // })
      }
      return Promise.reject(res)
    } else {
      return res.data
    }
  },
  error => {
    console.log('err：' + error) // for debug
    Message({
      message: error,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service
